How severe is CVE-2024-5463?

CVE-2024-5463 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability low.

Is CVE-2024-5463 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-5463?

CVE-2024-5463 primarily affects Synology Bc500 Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2024-5463?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2024-5463 have an EU (EUVD) identifier?

Yes. CVE-2024-5463 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-46677.

When was CVE-2024-5463 published?

CVE-2024-5463 was published on 2024-06-04 and last updated on 2026-06-17.

CVE-2024-5463

CVE-2024-5463 is a medium-severity vulnerability in Synology Bc500 Firmware with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-120.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 0% (33rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-46677
Weakness: CWE-120
Affected product: Synology Bc500 Firmware
Published: 2024-06-04
Last modified: 2026-06-17

Description

A vulnerability regarding buffer copy without checking the size of input ('Classic Buffer Overflow') has been found in the login component. This allows remote attackers to write specific files containing non-sensitive information and conduct limited denial-of-service attacks via unspecified vectors. This attack only affects the login service which will automatically restart. The following models with Synology Camera Firmware versions before 1.1.1-0383 may be affected: BC500 and TC500.

Frequently asked questions

What is CVE-2024-5463?: A vulnerability regarding buffer copy without checking the size of input ('Classic Buffer Overflow') has been found in the login component. This allows remote attackers to write specific files containing non-sensitive information and conduct limited denial-of-service attacks via unspecified vectors. This attack only affects the login service which will automatically restart. The following models with Synology Camera Firmware versions before 1.1.1-0383 may be affected: BC500 and TC500.
How severe is CVE-2024-5463?: CVE-2024-5463 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability low.
Is CVE-2024-5463 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-5463?: CVE-2024-5463 primarily affects Synology Bc500 Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2024-5463?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-5463 have an EU (EUVD) identifier?: Yes. CVE-2024-5463 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-46677.
When was CVE-2024-5463 published?: CVE-2024-5463 was published on 2024-06-04 and last updated on 2026-06-17.

References

https://www.synology.com/en-global/security/advisory/Synology_SA_24_07

Affected products (2)

cpe:2.3:o:synology:bc500_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:synology:tc500_firmware:*:*:*:*:*:*:*:*

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